15 Suppose a brother or sister is without clothes and daily food. 16 If one of you says to him, "Go, I wish you well; keep warm and well fed," but does nothing about his physical needs, what good is it? 17 In the same way, faith by itself, if it is not accompanied by action, is dead. 18 But someone will say, "You have faith; I have deeds." Show me your faith without deeds, and I will show you my faith by what I do. 19 You believe that there is one God. Good! Even the demons believe that--and shudder. 20 You foolish man, do you want evidence that faith without deeds is useless? 21 Was not our ancestor Abraham considered righteous for what he did when he offered his son Isaac on the altar?